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We report measurements on quality factors (Q's) of single-crystal silicon nanowire (SiNW) resonators operating in the very-high frequency (VHF) range. Q's of ~200 MHz metalized SiNWs are considerably lower than those of the pristine SiNWs operating at similar frequencies. The observed damping effect due to resonance transduction agrees well with the loaded-Q model for magnetomotive scheme. The temperature dependency of dissipation (Q-1 ) is found to be approximately from Q-1 prop T0.3 to Q-1 prop T0.4. Clamping losses are becoming important for such VHF ultrasmall resonators.